Nonclassicality of photon-added-then-subtracted and photon-subtracted-then-added states

• URL: http://arxiv.org/abs/2304.05324v1
• Date: Tue, 11 Apr 2023 16:30:15 GMT
• Title: Nonclassicality of photon-added-then-subtracted and photon-subtracted-then-added states
• Authors: Arpita Chatterjee
• Abstract summary: We formulate the density matrices of a quantum state obtained by first adding multi-photons to and then subtracting multi-photons from any arbitrary state. Considering the field to be initially in a thermal (or in an even coherent) state, we evaluate the photon number distribution, Wigner function and Mandel's $Q$ parameter of the resulting field.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We formulate the density matrices of a quantum state obtained by first adding multi-photons to and then subtracting multi-photons from any arbitrary state as well as performing the same process in the reverse order. Considering the field to be initially in a thermal (or in an even coherent) state, we evaluate the photon number distribution, Wigner function and Mandel's $Q$ parameter of the resulting field. We show graphically that in which order multi-photons are added and subtracted has a noticeable effect on the temporal behavior of these statistical properties.

Related papers

• Experimental preparation of multiphoton-added coherent states of light [0.0]
  Conditional addition of photons is a crucial tool for optical quantum state engineering. We demonstrate the addition of one, two, and three photons to input coherent states with various amplitudes. Results pave the way towards the experimental realization of complex optical quantum operations.
  arXiv  Detail & Related papers  (2024-05-16T19:06:52Z)
• Quantum tomography of helicity states for general scattering processes [55.2480439325792]
  Quantum tomography has become an indispensable tool in order to compute the density matrix $rho$ of quantum systems in Physics. We present the theoretical framework for reconstructing the helicity quantum initial state of a general scattering process.
  arXiv  Detail & Related papers  (2023-10-16T21:23:42Z)
• Two-mode photon-added entangled coherent states and their entanglement properties [0.0]
  An entangled quantum state is considered by applying a local photon excitation to each mode of an entangled coherent state. It is shown that applying a photon addition can improve the amount of entanglement.
  arXiv  Detail & Related papers  (2023-04-11T08:50:51Z)
• Entanglement of annihilation photons [141.5628276096321]
  We present the results of a new experimental study of the quantum entanglement of photon pairs produced in positron-electron annihilation at rest. Despite numerous measurements, there is still no experimental proof of the entanglement of photons.
  arXiv  Detail & Related papers  (2022-10-14T08:21:55Z)
• Correlated steady states and Raman lasing in continuously pumped and probed atomic ensembles [68.8204255655161]
  We consider an ensemble of Alkali atoms that are continuously optically pumped and probed. Due to the collective scattering of photons at large optical depth, the steady state of atoms does not correspond to an uncorrelated tensor-product state. We find and characterize regimes of Raman lasing, akin to the model of a superradiant laser.
  arXiv  Detail & Related papers  (2022-05-10T06:54:54Z)
• Multiple photon antibunching-to-bunching transitions in the dissipative anisotropic quantum Rabi model [4.54325448000206]
  We investigate the two-photon correlation function in the dissipative anisotropic quantum Rabi model. Multiple antibunching-to-bunching transitions are generally exhibited at the deep strong qubit-photon coupling.
  arXiv  Detail & Related papers  (2022-01-06T04:33:41Z)
• Un-symmetric photon subtraction: a method for generating high photon number states and their relevance to loss estimation at ultimate quantum limit [0.0]
  We have studied theoretical un-symmetric multi-photon subtracted twin beam state and demonstrated a method for generating states that resembles to high photon number states. A crucial point is high non-classicality is obtained by photon subtraction when mean photons per mode of twin beam state is low.
  arXiv  Detail & Related papers  (2021-10-03T23:28:47Z)
• Dimerization of many-body subradiant states in waveguide quantum electrodynamics [137.6408511310322]
  We study theoretically subradiant states in the array of atoms coupled to photons propagating in a one-dimensional waveguide. We introduce a generalized many-body entropy of entanglement based on exact numerical diagonalization. We reveal the breakdown of fermionized subradiant states with increase of $f$ with emergence of short-ranged dimerized antiferromagnetic correlations.
  arXiv  Detail & Related papers  (2021-06-17T12:17:04Z)
• Light-matter interactions near photonic Weyl points [68.8204255655161]
  Weyl photons appear when two three-dimensional photonic bands with linear dispersion are degenerated at a single momentum point, labeled as Weyl point. We analyze the dynamics of a single quantum emitter coupled to a Weyl photonic bath as a function of its detuning with respect to the Weyl point.
  arXiv  Detail & Related papers  (2020-12-23T18:51:13Z)
• Can we control the amount of useful nonclassicality in a photon added hypergeometric state? [0.0]
  We study the role of photon addition, a non-Gaussianity inducing operation, in the enhancement of nonclassicality in a finite dimensional quantum state. In principle, decreasing the dimension of the state is analogous to holeburning and is thus expected to increase nonclassicality.
  arXiv  Detail & Related papers  (2020-07-28T14:34:14Z)
• Topological photon pairs in a superconducting quantum metamaterial [44.62475518267084]
  We use an array of superconducting qubits to engineer a nontrivial quantum metamaterial. By performing microwave spectroscopy of the fabricated array, we experimentally observe the spectrum of elementary excitations. We find not only the single-photon topological states but also the bands of exotic bound photon pairs arising due to the inherent anharmonicity of qubits.
  arXiv  Detail & Related papers  (2020-06-23T07:04:27Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.